I think the left one is M. Ancilius. The outer rim of letters is blank but the dots under the Roma head and pose of Hercules in walking 4riga makes this more than likely.
I think that's a nice deal for $20.00 total. Especially when one considers they are 2,000 year old Roman Republic denarii with some remaining remnant of legends and devices. To check and compare more legible examples, you might try acsearch for starters and then wildwinds: http://www.acsearch.info/search.html?term=T carisius denarius&category=1-2&en=1&de=1&fr=1&it=1&es=1&ot=1&images=1¤cy=usd&thesaurus=1&order=0&company= http://www.wildwinds.com/coins/rsc/acilia/i.html
